If you are 
                                                  looking for plants that will 
                                                  flower spectacularly and reliably 
                                                  all year round, you really can’t 
                                                  go past the mandevillas. Some 
                                                  are vigorous twining climbers; 
                                                  some are rather more shrubby. 
                                                  But they all produce masses 
                                                  of flowers, which generally 
                                                  range in colour from pure white 
                                                  to deep crimson.  
                                                A number of colourful new varieties 
                                                  have become available over the 
                                                  past few years. You may know 
                                                  some of them as ‘dipladenias’, 
                                                  since this is the name under 
                                                  which many have been sold. They 
                                                  are all worth growing, and all 
                                                  reasonably easy to propagate 
                                                  by cutting, as long as you follow 
                                                  some basic rules. 
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